<?php
/**
 * Plugin bootstrap: hooks, assets, options.
 *
 * @package Fontdelbosc_Transit
 */

defined( 'ABSPATH' ) || exit;

/**
 * Bootstraps the plugin.
 */
class Fontdelbosc_Transit_Plugin {

	private const OPTION_NAME = 'fontdelbosc_transit_options';

	/**
	 * Default options.
	 *
	 * @var array<string, mixed>
	 */
	private static array $defaults = array(
		'incident_cache_ttl'         => 300,
		'zbe_cache_ttl'              => 86400,
		'default_view'               => 'c15',
		'max_incidents'              => 20,
		'zbe_municipalities'         => null,
		'show_zbe_2026_notice'       => true,
		'delete_data_on_uninstall'   => false,
	);

	/**
	 * Hook everything.
	 */
	public static function init(): void {
		add_action( 'init', array( __CLASS__, 'load_textdomain' ) );
		add_action( 'wp_enqueue_scripts', array( __CLASS__, 'register_assets' ) );

		Fontdelbosc_Transit_Shortcode::init();
		add_action( 'widgets_init', array( __CLASS__, 'register_widget' ) );

		if ( is_admin() ) {
			require_once FONTDELBOSC_TRANSIT_DIR . 'admin/class-fontdelbosc-transit-admin.php';
			Fontdelbosc_Transit_Admin::init();
		}
	}

	/**
	 * Load translations.
	 */
	public static function load_textdomain(): void {
		load_plugin_textdomain( 'fontdelbosc-transit', false, dirname( plugin_basename( FONTDELBOSC_TRANSIT_DIR . 'fontdelbosc-transit.php' ) ) . '/languages' );
	}

	/**
	 * Register the front-end stylesheet.
	 */
	public static function register_assets(): void {
		$css = FONTDELBOSC_TRANSIT_DIR . 'public/css/fdbt-transit.css';

		wp_register_style(
			'fdbt-transit',
			plugins_url( 'public/css/fdbt-transit.css', FONTDELBOSC_TRANSIT_DIR . 'fontdelbosc-transit.php' ),
			array(),
			(string) filemtime( $css )
		);
	}

	/**
	 * Register the widget.
	 */
	public static function register_widget(): void {
		register_widget( 'Fontdelbosc_Transit_Widget' );
	}

	/**
	 * Get options merged with defaults.
	 *
	 * @return array<string, mixed>
	 */
	public static function get_options(): array {
		$saved   = get_option( self::OPTION_NAME, array() );
		$saved   = is_array( $saved ) ? $saved : array();
		$options = array();

		foreach ( self::$defaults as $key => $default ) {
			$options[ $key ] = array_key_exists( $key, $saved ) ? $saved[ $key ] : $default;
		}

		if ( null === $options['zbe_municipalities'] ) {
			$options['zbe_municipalities'] = Fontdelbosc_Transit_Api_Zbe::DEFAULT_CATALAN_ZONES;
		}

		return $options;
	}

	/**
	 * Name of the options entry.
	 *
	 * @return string
	 */
	public static function option_name(): string {
		return self::OPTION_NAME;
	}
}